In this podcast episode, Jean-Louis Tourneux and Harald Versteeg share how the CO2 Performance Ladder is helping public authorities and businesses across Europe cut carbon emissions through smarter procurement. Used for over 15 years, this practical tool turns purchasing power into a driver of decarbonisation. Listeners will learn how it tackles common challenges in Green Public Procurement—such as limited expertise, complex tools and monitoring gaps—by providing a clear and effective framework for measurable climate action.